The nigredo or blackness (fig. 115) is the initial state, either present from the beginning as a quality of the prima materia, the chaos or massa confusa, or else produced by the separation (solutio, separatio, divisio, putrefactio) of the elements. If the separated condition is assumed at the start, as sometimes happens, then a Jungian of opposites is performed under the likeness of a Jungian of male and female (called the coniugium, matrimonium, coniunctio, coitus), followed by the death of the product of the Jungian (mortificatio, calcinatio, putrefactio) and a corresponding nigredo. From this the washing (ablutio, baptisma) either leads direct to the whitening (albedo), or else the soul (anima) released at the "death" is reunited with the dead body and brings about its resurrection, or again the "many colours" (omnes colores), or "peacock's tail" (cauda pavonis), lead to the one white colour that contains all colours. At this point the first main goal of the process is reached, namely the albedo, tinctura alba, terra alba foliata, lapis albus, etc., highly prized by many alchemists as if it were the ultimate goal. It is the silver or moon condition, which still has to be raised to the sun condition. The albedo is, so to speak, the daybreak, but not till the rubedo is it sunrise.
— Carl Gustav Jung
Nigredo is not the problem the alchemists were trying to solve — it is the necessary condition of everything that follows. Jung reads it this way throughout *Psychology and Alchemy* (1944): the blackness is either already present in the prima materia or it is produced by the work itself, by separation and dissolution. Either way, it cannot be skipped. What the tradition calls putrefactio is not a failure of the process; it is the process, operating correctly.
The place readers tend to misread the sequence is at the albedo. That whitening — the lunar silver, the terra alba foliata — arrives as such relief after the blackness that it carries the feeling of arrival. Many alchemists, Jung notes, took it as the final goal. The temptation makes complete psychological sense: to have passed through dissolution and emerged into something luminous, coherent, washed clean feels like completion. But the albedo is daybreak, not sunrise. The moon holds the light it borrows; it does not generate its own. What the rubedo demands is a further exposure — the solar condition, unmediated, full heat — and that cannot be reached by staying in the cool reflected light of what the blackness produced. The sequence insists on this. Whiteness is not the destination; it is what becomes visible right before the hardest part of the transformation begins.
Carl Gustav Jung·Psychology and Alchemy·1944